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229 lines
6.6 KiB
229 lines
6.6 KiB
/* |
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* This file is provided under a dual BSD/GPLv2 license. When using or |
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* redistributing this file, you may do so under either license. |
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* |
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* GPL LICENSE SUMMARY |
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* |
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of version 2 of the GNU General Public License as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
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* The full GNU General Public License is included in this distribution |
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* in the file called LICENSE.GPL. |
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* |
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* BSD LICENSE |
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* |
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Intel Corporation nor the names of its |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef __SCU_REMOTE_NODE_CONTEXT_HEADER__ |
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#define __SCU_REMOTE_NODE_CONTEXT_HEADER__ |
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/** |
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* This file contains the structures and constatns used by the SCU hardware to |
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* describe a remote node context. |
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* |
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* |
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*/ |
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/** |
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* struct ssp_remote_node_context - This structure contains the SCU hardware |
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* definition for an SSP remote node. |
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* |
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* |
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*/ |
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struct ssp_remote_node_context { |
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/* WORD 0 */ |
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/** |
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* This field is the remote node index assigned for this remote node. All |
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* remote nodes must have a unique remote node index. The value of the remote |
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* node index can not exceed the maximum number of remote nodes reported in |
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* the SCU device context capacity register. |
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*/ |
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u32 remote_node_index:12; |
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u32 reserved0_1:4; |
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/** |
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* This field tells the SCU hardware how many simultaneous connections that |
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* this remote node will support. |
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*/ |
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u32 remote_node_port_width:4; |
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/** |
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* This field tells the SCU hardware which logical port to associate with this |
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* remote node. |
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*/ |
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u32 logical_port_index:3; |
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u32 reserved0_2:5; |
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/** |
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* This field will enable the I_T nexus loss timer for this remote node. |
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*/ |
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u32 nexus_loss_timer_enable:1; |
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/** |
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* This field is the for driver debug only and is not used. |
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*/ |
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u32 check_bit:1; |
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/** |
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* This field must be set to true when the hardware DMAs the remote node |
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* context to the hardware SRAM. When the remote node is being invalidated |
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* this field must be set to false. |
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*/ |
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u32 is_valid:1; |
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/** |
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* This field must be set to true. |
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*/ |
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u32 is_remote_node_context:1; |
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/* WORD 1 - 2 */ |
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/** |
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* This is the low word of the remote device SAS Address |
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*/ |
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u32 remote_sas_address_lo; |
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/** |
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* This field is the high word of the remote device SAS Address |
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*/ |
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u32 remote_sas_address_hi; |
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/* WORD 3 */ |
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/** |
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* This field reprensets the function number assigned to this remote device. |
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* This value must match the virtual function number that is being used to |
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* communicate to the device. |
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*/ |
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u32 function_number:8; |
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u32 reserved3_1:8; |
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/** |
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* This field provides the driver a way to cheat on the arbitration wait time |
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* for this remote node. |
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*/ |
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u32 arbitration_wait_time:16; |
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/* WORD 4 */ |
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/** |
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* This field tells the SCU hardware how long this device may occupy the |
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* connection before it must be closed. |
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*/ |
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u32 connection_occupancy_timeout:16; |
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/** |
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* This field tells the SCU hardware how long to maintain a connection when |
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* there are no frames being transmitted on the link. |
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*/ |
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u32 connection_inactivity_timeout:16; |
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/* WORD 5 */ |
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/** |
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* This field allows the driver to cheat on the arbitration wait time for this |
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* remote node. |
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*/ |
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u32 initial_arbitration_wait_time:16; |
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/** |
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* This field is tells the hardware what to program for the connection rate in |
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* the open address frame. See the SAS spec for valid values. |
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*/ |
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u32 oaf_connection_rate:4; |
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/** |
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* This field tells the SCU hardware what to program for the features in the |
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* open address frame. See the SAS spec for valid values. |
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*/ |
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u32 oaf_features:4; |
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/** |
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* This field tells the SCU hardware what to use for the source zone group in |
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* the open address frame. See the SAS spec for more details on zoning. |
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*/ |
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u32 oaf_source_zone_group:8; |
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/* WORD 6 */ |
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/** |
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* This field tells the SCU hardware what to use as the more capibilities in |
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* the open address frame. See the SAS Spec for details. |
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*/ |
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u32 oaf_more_compatibility_features; |
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/* WORD 7 */ |
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u32 reserved7; |
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}; |
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/** |
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* struct stp_remote_node_context - This structure contains the SCU hardware |
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* definition for a STP remote node. |
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* |
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* STP Targets are not yet supported so this definition is a placeholder until |
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* we do support them. |
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*/ |
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struct stp_remote_node_context { |
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/** |
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* Placeholder data for the STP remote node. |
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*/ |
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u32 data[8]; |
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}; |
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/** |
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* This union combines the SAS and SATA remote node definitions. |
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* |
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* union scu_remote_node_context |
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*/ |
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union scu_remote_node_context { |
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/** |
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* SSP Remote Node |
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*/ |
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struct ssp_remote_node_context ssp; |
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/** |
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* STP Remote Node |
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*/ |
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struct stp_remote_node_context stp; |
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}; |
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#endif /* __SCU_REMOTE_NODE_CONTEXT_HEADER__ */
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